Roller for fire-resisting curtains.



No. 799,485. PATENTED SEPT. 12, 1905.

B. H. MoGLOUD. l

ROLLER FOR FIRE RBSISTING CURTAINS.

APPLICATION rum) PM. 1.19%.

[ M r 'h l' "u Witnesses 4 awwmtoz 6 EMH/m'em,

LI/L athwwup UNITED STATES PATENT orrion.

EDWARD H. MoCLOUD, OF COLUMBUS, OHIO, ASSIGNOR TO THE KIN- NEAR MANUFACTURING COMPANY, OF COLUMBUS, OHIO, A COR- PORATION OF WEST VIRGINIA.

Specification of Letters Patent.

Patented Sept. 12, 1905.'

Application filed February 1, 1905- Serial No. 243,682.

To all whom it may concern.-

Be it known that I, EDWARD H. MoCLoUD, a citizen of the United States, residing at C0- lumbus, in the county of Franklin'and State of Ohio, have invented certain new and useful Improvements in Rollers for Fire-Resisting Curtains; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The springs employed in spring-rollers for fireproof curtains are of course of tempered steel. In case of fire such springs may be subjected to such a high heat as to destroy their temper, and thus render them unfit to perform their proper function. If a spring be thus rendered incapable of performing its function, it may become impracticable for an occupant of a building to lift the curtain to effect his escape or for a fireman to gain access to the seat of a fire. It is important, therefore, that some provision be made to protect the spring against heat sufii'cient to aifect its temper.

The object of the present invention, therefore, is to provide such means; and the invention consists in the construction hereinafter described and claimed, the invention being an improvement upon another form shown and claimed in another application for patent filed concurrently herewith.

In the accompanying drawings, illustrating an embodiment of the invention, Figure 1 is a sectional view longitudinally of the roller, but with parts in full, illustrating an embodiment of the invention. Fig. 2 is a cross-section of the roller on a larger scale. Fig. 8 is an elevation of a roller-supporting bracket.

In the views, 1 designates the drum or cylinder of the roller containing a spring2 of tempered steel. The roller is shownto be supported in brackets 3, as is customary with the type of roller shown. On the exterior of the inner drum 1 are placed at suitable intervals flat rings 4, provided with lateral shoulders 4 and openings 4: at their inner sides, and on the shoulders 49 betweenthe rings are sheathings of asbestos orother fire-resisting material or material that poorly conducts heat. Surrounding the rings and inclosing the sheath- 1ng 1s an outer cylinder or drum 6, of sheetsteel, which is secured to the rings by means of screws 7 The screws 7 can pass through the rings 4 and engage the inner drum, or the rings 1 can'be first secured to the inner drum and the outer drum secured to the rings by separate screws or other suitable means.

8 designates a metallic curtain secured in a suitable manner to the outer drum. The curtain can be fastened to the outer drum by some of the same screws that secure the drum to the rings.

It will be observed that the outer drum and rings secure the filling in position between the inner and outer drums and that a firm support for the outerdrum is provided.

By supporting the sheathing at its edges on the shoulders 4 an air-space is provided between the sheathing and the inner drum, and by providing in the rings 4 openings 4 a circulation of air can be secured from space to space between the drum and sheathing.

Sometimes the roller and curtain are hooded in by means of sheet metal fitted around the rims of the end brackets, and when this is done the end casings are provided with openings 3 opposite the openings 43 in the rings at the ends of the drum. These openings will insure the free circulation of air about the inner drum.

Some changes can be made without departing from the scope of the invention.

What I claim, and desire to secure by Letters Patent, is

1. In a roller for fire-resisting curtains, the

combination with the inner drum and spring therein, of rings projectingly supported on outer drum, said outer drum, and a sheathing of fire-resistlng or non-heat-conductlng material and an air-space between the inner and outer drums.

3. In a roller for fire-resisting curtains, the combination with the inner drum and spring thereon, of shouldered rings on the exterior of the inner drum, a sheathing of fire-resistby said shoulders and an outer drum support- IO ing or non-heat-conduoting material engaged ed by said rings beyond the inner drum. by said shoulders, and an outer drum sup- In testimony WhereofIafliX my signature in ported by said rings. h presence of two Witnesses.

4. In a roller for fire-resisting curtains, t e combination With the inner drum and spring EDWARD MGLLOUD' therein, of shouldered rings on the exterior of the inner drum, a sheathing of fire-resisting or non-heat-oonducting material engaged -Witnesses:

U. R. PETERS, BENJ. FINOKEL. 

